Résumé

• About 15 years experience writing advanced system level and scientific visualization code in C++, in the industry, an academic setting, and in the free software community.
• Through scientific background and experience with a wide range of languages and techniques very proficient with domain-specific modeling and design.
• Very experienced with portable, i.e. platform independent development. This applies as much to the source code as to the infrastructure (building, testing, packaging).

Skills

Programming:

• Programming languages:

  • C++, Python, Perl, C, Java, IDL, XML, XSL, SQL, sh

• Scientific programming:

  • Molecular dynamics in biomembranes
  • Stochastic simulations: Monte Carlo, Brownian Dynamics, Reaction Diffusion Systems
  • Nonlinear dynamics, numerical solutions of differential equations
  • Scientific visualization in 2D and 3D

• System programming:

  • Distributed systems: CORBA
  • POSIX, IPC, RPC, threads
  • Graphics: X, openGL
  • Libraries and frameworks: Qt, OpenSceneGraph, boost, ACE
  • System level programming on platforms such as GNU/Linux, IRIX, Solaris, MS Windows

• Software engineering and project administration:

  • OOP, OOA/D, UML
  • Multi-Paradigm design, Generic Programming
  • Project coordination and administration using cvs, mailman, various bug tracking systems and task managers
  • Daily use of development tools like gcc, make, autotools, cvs, flex, bison, python, perl, sh, postgresql, docbook

Languages:

• German, English, French:

  spoken fluently and daily

Experience

CodeSourcery (2005 - present)

Sourcerer

ORTHOsoft (2001 - 2004)

Software Developer

• Design and develop a new document-centric architecture based on an Electronic Patient Record. This includes various services such as persistence, recording / playback, and logging, and is based on XML (using DOM and SAX APIs).
• Design and develop a portable component model that was used to refactor (i.e. modularize) the whole product suite.
• Develop and maintain the Motion Capture component with its principal implementation using the NDI Polaris Tracking System. Bind this component to a scene graph (based on openGL and OpenSceneGraph) for real-time rendering of tracked surgical instruments.
• Develop a scripting frontend (python) for a number of components using boost.python
• Enhance the development environment by writing a new build system (using MSVC++, gcc, MipsPro, make, autoconf), a new unit testing framework (using qmtest), code documentation tool (using synopsis), and internal web site (using apache, a wiki, in-house cgi scripts, etc.).
• Enhanced the software's portability to now support MS Windows, GNU/Linux, and IRIX.

The Berlin / Fresco Project (1998 - 2003)

Architect and Principal Developer

Fresco is a highly modular, multi-threaded, distributed 3D enabled windowing system, based on a persistent scene graph with server-interpolated high color/spatial resolution and server-side UI components.

• I designed and implemented most of the system using CORBA IDL, C++, Python. The implementation contains various system level and graphics libraries to make it highly portable, scalable and extensible. Lower level APIs that are being used include openGL, POSIX, CORBA 2.3, etc.
• I implemented the build system for Berlin using tools such as make, autotools, perl
• I presented the project at various international conferences, such as the Ottawa Linux Symposium (Canada) or the LinuxTag (Germany)

SIGGRAPH Montreal (2001 - 2002)

Member of the founding comitee

The Synopsis Project (2000 - present)

Coordinator and Lead Developer

Synopsis is a modular source code inspection tool, mainly designed to generate reference manuals from inlined documentation. It supports a variety of languages through the use of pluggable parsers, as well as a wide range of output generators, such as HTML, XML, or UML graphs.

• I designed the overall layout of the framework, the data flow, as well as the class hierarchy used.
• I implemented the core of the application (in python), as well as some of the parsers and formatters (C++, python).

The OffiX Project (1996 - 1998)

Coordinator and Lead Developer

OffiX is a GUI toolkit based on X11. It implements a variety of Inter-Client Communication protocols to support 'Drag and Drop', as well as other data exchange mechanisms.

• I coordinated the project's development and implemented the main components.

Dynamic Monte-Carlo Automaton (1994 - 1996)

Programmer

as part of my masters program, I designed and implemented a tool to simulate Reaction Diffusion Systems using dynamic Monte-Carlo techniques. The program is written using Generic Programming techniques (C++ templates). It contains a parser for a formal system definition written using flex/bison.

Education

Université de Montréal (Sep 1996 - Dec 2000)

graduate studies in biophysics about ion transport through biological membranes

Humboldt Universität zu Berlin (Sep 1993 - Aug 1996)

M.Sc. in physics about ``Cluster Formation in Non-Equilibrium Systems''

Université Laval, Québec (Sep 1992 - Apr 1993)

study trip to Québec

Humboldt Universität zu Berlin (Sep 1989 - Jul 1992)

university studies in physics

Publications and conferences

• Stefan Seefeld,
  Hybrid Programming with C++ and Python using Boost.Python
  Talk at Bossa Conference 2009
• Stefan Seefeld,
  Fresco
  Talk at FOSDEM 2004
• Stefan Seefeld, Daniel Odermatt,
  Computer Assisted Surgery
  SIGGRAPH Montreal conference 04/2002
• Wonpil Im, Stefan Seefeld, Benoît Roux,
  A Grand Canonical Monte Carlo-Brownian Dynamics Algorithm for Simulating Ion Channels
  Biophys. J. 2000 79: 788-801
• L. Schiemansky-Geier, S. Seefeld, V. Buchholtz,
  Making spatial structures by ratchets
  Ann. Phys. 2000 9: 705-712
• Stefan Seefeld,
  Berlin - neue Wege für grafische Benutzeroberflächen
  LinuxTag 2000, Proceedings
• Stefan Seefeld, Graydon Hoare,
  Berlin: taming premature rasterization with structured graphics
  Talk at the Ottawa Linux Symposium 2000
• Stefan Seefeld, Graydon Hoare,
  Berlin: a Structured User Interface
  Ottawa Linux Symposium 2000, Proceedings